Eaton diler series contactor relay auxiliary contact module eaton 051768 the eaton 051768 diler 31 is a 4 pole din rail miniature contactor relay with ac coil from the diler series the modular contactor is rated at 230 to 240v ac 50 60hz is small in size but rugged the four pole device is housed in a package only 45mm wide but provides up to 10 million operations the contactor is modular and can be used to create an 8 pole relay the base relay and auxiliaries are all rated to 10a ul